Rheological studies of alkylamine-ethylene glycol organogel: Chain length dependent structural diversity
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- 作者：Guoliang Liu ; Xinlin Hong ; Shik Chi Edman Tsang
- 关键词：Alkylamine organogel ; Rheology ; Sol&ndash ; gel transition ; Structural diversity
- 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
- 出版年：2013
- 出版时间：5 October, 2013
- 年：2013
- 卷：434
- 期：Complete
- 页码：1-8
- 全文大小：2169 K
文摘
A systematic rheological study is undertaken to investigate the viscoelastic behaviors of alkylamine-ethylene glycol organogels. Microstructures and resulting mechanical properties are thus studied in the functions of temperature, chain length and concentration of the alkylamine. A model based on scaling laws of shear elasticity versus concentration is employed to describe the structural features of the gels. According to the supersaturation principle, a gradual structural change from lamellar/fibrillar to spherulitic/polyhedral network can be accounted when the chain length of alkylamine is increased from 12 to 18.